Tar-Ancalimon (Q, pron. [ˌtaraŋˈkalimon], stem Ancalimond-) was the fourteenth King of Númenor. He succeeded his father Tar-Atanamir. His name means "Most Bright".

During Tar-Ancalimon's reign, two opposing parties arose among Númenóreans: the Elf-friends, or "Faithful", advocated continuing devotion to the Valar and friendship with the Elves. The "King's Men" arrogantly propounded Man's independence and self-determination, seeing how they had reached the apex of their might. This split would culminate in the Fall of Númenor.